Finding repeated words on a string and counting the repetitions

Question

I need to find repeated words on a string, and then count how many times they were repeated. So basically, if the input string is this:

String s = \"House, House         


        

Answer 1

as introduction of stream has changed the way we code; i would like to add some of the ways of doing this using it

    String[] strArray = str.split(" ");
    
    //1. All string value with their occurrences
    Map counterMap = 
            Arrays.stream(strArray).collect(Collectors.groupingBy(e->e, Collectors.counting()));

    //2. only duplicating Strings
    Map temp = counterMap.entrySet().stream().filter(map->map.getValue() > 1).collect(Collectors.toMap(map -> map.getKey(), map -> map.getValue()));
    System.out.println("test : "+temp);
    
    //3. List of Duplicating Strings
    List masterStrings = Arrays.asList(strArray);
    Set duplicatingStrings = 
            masterStrings.stream().filter(i -> Collections.frequency(masterStrings, i) > 1).collect(Collectors.toSet());